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andreyandreev [35.5K]
3 years ago
9

How can we prevent chemical hazards in labotary

Engineering
1 answer:
Maurinko [17]3 years ago
4 0

Answer:

We can prevent it by:

a) By wearing GOOGLES.

b) By wearing our Lab coat.

c) Fire extinguisher should always be present in the lab.

d) Hand Gloves must be worn.

e) No playing in the lab.

f) No touching of things/equipment's e.g bottles, in the lab.

g) No eating/snacking in the lab.

h) Always pay attention, no gisting.

i) Adult/qualified person must be present in the lab with pupils/students.

Explanation:

Hope it helps.

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A disc brake rotor is being machined. Technician A says that a feed rate of 0.0008 inch per revolution and 150 RPM is where the
erma4kov [3.2K]

Answer:

Technician B only

Explanation:

During rotor reconditioning, which is the process also known as machining and sanding, where sanding is the involves the application of between 120 and 150 grit sandpaper while using a non-excessive force that is applied non-directionally for up to 60 seconds on each side such that the surface roughness meets OE standards. The rotors are then cleaned by washing after they are serviced before they can then be installed.

3 0
3 years ago
Steam flows steadily through a turbine at a rate of 420 kg/min. The enthalpy of the steam decreases by 600 kJ/kg as it flows ste
Ghella [55]

Answer:

the rate of heat loss from the steam turbine  is Q = 200 kW

Explanation:

From the first law of thermodynamics applied to open systems

Q-W₀ = F*(ΔH + ΔK + ΔV)

where

Q= heat loss

W₀= power generated by the turbine

F= mass flow

ΔH = enthalpy change

ΔK = kinetic energy change

ΔV = potencial energy change

If we neglect the changes in potential and kinetic energy compared with the change in enthalpy , then

Q-W₀ = F*ΔH

Q =  F*ΔH+ W₀

replacing values

Q =  F*ΔH+ W₀ = 420 kg/min * (-600 kJ/kg) * 1 min/60 s * 1 MW/1000 kW + 4 MW = -0.2 MW = -200 kW (negative sign comes from outflow of energy)

4 0
3 years ago
One kilogram of air as an ideal gas executes a Carnot power cycle having a thermal efficiency of 50%. The heat transfer to the a
Alexeev081 [22]

Answer:

(a) the maximum and minimum temperatures for the cycle in K;

Maximum temprature = T1 = 600.05K

Minimum temprature = 300.03K

(b) the pressure and volume at the beginning of the isothermal expansion in bar and m3 respectively;

Pressure (P4) = 0.67842 bar

Volume (V4) = 1.2693m^{3}

(c) the work and heat transfer for each of the four processes in kJ.

W_{4-1}  = -215.25 kJ

The answers are clearly explained in the below mentioned document.

Explanation:

Kindly download the below mentioned document, I have explained in quite detail in it. I hope it will help. Thanks.

Download doc
6 0
3 years ago
Toggle the supports back on. With the 20 kg mass still in the same position, iterate the position and amount of mass on the righ
melisa1 [442]

/T

see its about torque you know:

If we put 5 kg on right after removing 20kg then :

Torque =(perpendicular component of force vector ) X (distance from the axis )

for rotational equilibrium Torque should be balanced.

Now we calculate torque /

6 0
3 years ago
HELP ASAP PLEASE!!! this is for peer counsiling
Fofino [41]

Explanation:

We can do another country like Spain and Mexico

Take what you need ok?

The Spanish language extends far beyond Spain and Mexico. One of the top five languages spoken worldwide, there are twenty official Spanish-speaking countries. Within each country or region, however, there are different dialects and varieties, making Spanish one of the most diverse languages in the world. With this great diversity comes a valid business question: Is there a “universal” or “proper” Spanish that I can use for my global business?

Linguistically speaking, the short answer: no. There is no such thing as a “better” Spanish since every dialect is unique and correct in its uniqueness. However, from a marketing point of view, the question now becomes: Is it really necessary to translate and localize for every single Spanish dialect?

Again, the answer is (generally) no. But it all depends on your target Spanish-speaking markets. If you want to reach customers in places like Peru, Argentina, or Puerto Rico, you’ll likely need to translate your content with these variations in mind.

The key is to find variations in vocabulary and grammar where Spanish is spoken and think about how they might influence your particular content. One obvious difference between Spanish in Spain and in Latin America is with the pronouns for “you.” In Latin American Spanish you don’t use the informal pronouns Tú (singular) and Vosotros (plural) as you would in Spain. Instead, the pronouns Usted and Ustedes are used for all situations. In Spain, these pronouns are only used to address somebody formally.

Of course, many people think that there are only distinctions between European Spanish and Latin American Spanish. But because every Spanish-speaking country has developed differently, this simply isn’t true. You have to take into consideration each country’s individual culture, politics, technology, and economy. These factors have great impact on the language and can make the same words mean something quite different when crossing a border.

The Influence of History

For example, some countries in South America, like Argentina or Chile, might see themselves as more European than Latin since they have primarily Spanish and Italian ancestry. The Spanish there reflects this difference: the word bunga (pickpocket) used in Chile and Argentina originated from the Italian word pungia (pocket). Argentina’s word for gun, bufoso, also originated from the Italian word buffare. But then there are some local dialects inside Peru where many Japanese and Chinese words have been Hispanicized, such as: ocha (a hot infusion), matchi (a match), and Chifa (the Peruvian name for Chinese restaurants that comes from the Chinese term 饎飯, “chi faan”, meaning “to eat rice.”) These words reflect the influence of Asia on the local culture there.

You also need to be careful when using political, ideological, and legal terminology because not all Spanish-speaking countries are ruled by the same type of government. Spain, for instance, has a constitutional monarchy while Cuba is communist. Differences in power structures make for differences in terms in Spanish, some of which don’t even have a rough equivalent in another Spanish-speaking country.

What’s in a Name?

You also need to consider that products can have completely different names depending on the country. Just think of ‘truck” and “lorry” with British and American English. Take the word “computer.” In Spain “computer” translates to ordenador, but in most Latin American countries the word is computadora.

Thinking about spreading your business through multiple Spanish-speaking countries? Be sure to go beyond translation and localize the content. Localization along with translation allows you to address the right audience from the beginning. Customers buying a coche in Spain want to come home with a car, but in Mexico, they’re in the market for baby strollers, not a family vehicle. Catching these differences before launching a campaign will save you and your Spanish-speaking customer’s confusion, no matter where your company ends up.

6 0
3 years ago
Read 2 more answers
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